Improved machine foe pulverizing books, obes



GOODWIN 61 SQUIRE.

Ore Mill. No. 69,655. j Patented Oct. 8, 1867.

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WILLIAM F. GOODWIN, OFEAST NEW YORK, AND CHARLES R; SQUIRE, 0F

NEW YORK, N. Y.

LetteraPat'ent No. 69,655, dated October 8, 1867.'

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Be it known that we, WILLIAMT. GOODWIN, of East New York, in the county of Kings, and State of New York, and CHARLES R. SQUIRE, of the city, county, and State of New York, have invented a new and useful Improvement in Machines for Pulverizing and Concentrating Rocks and Ore's for .the purpose of obtaining the precious metals therefrom; and we declare the ibllowing to be a full, clear, and exact description of the same,

reference being bad to the accompanying drawings, which form a part of this specification, and in \vhich-- Figure 1 representsa perspective view of the same machine set up in a frame ready for use.

Figure 2 represents a side elevation of the same-machine, having the caps or end pieces removed, showing the pulverizing apparatus inside of the main drums A- and B.

Similar letters of reference indicate corresponding parts in thev two figures.

Our improvement consists in the'employment'of a series of ribbed or cogged wheels, which are enclosed within a drum, and attached to a projection extending down from the shaft on which, thedrum revolves, which pinions mesh together, and also mesh with theribs .or cogs on the inner face of the hoop of thedrum, the revolv ing of which revolves the, pilnions for the purpose of washing the ore and concentrating the metal. 7

Toenable others to unders'tand'and use our invention, we will now proceed to give a detailed description of the same, referring to the accompanying drawings. I m

A is a drum-wheel, composed ofthree pieces, a hoop and two heads; I The inner surface of the hoop ispro vided with cogs oiribs, into which mesh the outer ribs or eogs of the hoop orwheel A. A is a hoop of smaller diameter than the interior diameter of the/hoop of the drum A, and, having a less number of cogs or teeth, revolves faster," making a greater number of revolutions in the same time than the drum A. A is also provided with cogs or ribs on both itsouter and inner surfaces. A is a cog'ged wheel, smaller'in diameter, which rolls within and meshes with the wheel A, and, having a less number of teeth or-cogs, revolves faster, making a. greater number or revolutions in the same time than the other wheels. The wheels A and A being placedrin the hoop of the drum A, the head D is screwed on the hoop, thus enclosing them within the drum. The heads D are provided with hubs or journals D, which fi'tliu the boxes on the frame F on which the drum is supported. The hubs D are hollowlforthe. purpose of receiving and discharging ore and water. The-heads D are also provided with gates D, which are opened to discharge the pulverized and'concentrated orefrom the drum: The 'ore is passed into the. drum through the hopper H and hubs D after-it has been crushed, disintegrated, and desulphurized,

A current of water accompanies the ore, which serves to wash it, passing in at onehub and out at the other while the ,wheels are in motion, carrying with it the lighter substances or refuse of the rock or ore, leaving the metallic substances or properties in the drum, thus concentrating them. The difference in the diameters and numbers of teeth in the wheels, which causes the smallerfor inner wheels to revolve faster than the larger or external wheel or wheels, causes the ribs or cogs of each to rub in the meshes of the other, thus causing a rubbing, scouring, and grinding effect, which will reduce the disintegrated rocky substances of the ore to an impal-pable powder, thus freeing the precious meta'ls. By the use of ribs or cogs a greater grinding or rubbing surface is obtained than could be produced by smooth surfaces; The drum maybe revolved by means of a belt or gear-wheels, as may be found most convenient. B is a drum similar to the above-described drum A, with the following exceptions: the teeth on the inner surface of the hoop of the drum B are smaller than those of the drum'A, and the heads E of the drum B have their. hearings on and revolve around thestationary hollow shaft B, which hollow shaft extends through the drum. Its ends projecting on each side rest on the frame F, answer .ing the triple purpose of supportingthe 'drum' B, the internal bush or pinion-wheels, with their supporting pr0- jectionirBhnnd serving through its hollow as a means of receiving-ore and water at one end and discharging the waterand lighter particles at the other. Enclosed within the drum Bis a series of pinion or cogged wheels, held and supported by and between the cheeks B one of which is shown in fig. 2, in dotted lines, the other being removed to show the wheels, which cheeks are rigidly attache d,'one at each side of the drum to the stationary-shaft B, and'projecting downward serve to hold the bush-wheels. down to the bottom of and in gear wi th the drum. When the drum is revolved the small wheels being held between the stationary cheeks, and being small in diameter, and having butfew teeth compared ,with the drum, revolve very rapidly, turning in reversed directions, thus thoroughly stirring, rubbing, and washing the ore, and concentrating the metal. When thepulverized ore is taken from the drum A it is placed in the drum B, where it is more thoroughly washed and concentrated, and may be amalgamated in the some process if desired. The drums A and B may be operated together, as shown in fig. 1, by cogs meshing together and a pinion-wheel, or may be operated separately by bolts.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is The series of ribbed 0r eogged wheels B 13 B, B, B enclosed within the drum B, which wheels mesh together and with the teeth or ribs on the inner surface of the hoop 0F the drum, the revolving of which revolves the pinion-wheels, constructed and arranged to operate in the manner and for the purpose substantially as described.

WM. F. GOODWIN,

C. R. SQUIRE. Witnesses:

G. W. F. RANDOLPH, Moses Fosrnn. 

